Journal
BIORESOURCE TECHNOLOGY
Volume 248, Issue -, Pages 113-119Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.06.153
Keywords
Periphyton photobioreactor; PPCPs; Photoperiod; Hydraulic retention time; Microbial community
Funding
- State Key Development Program for Basic Research of China [2015CB158200]
- Natural Science Foundation of Hubei Province [2015CFB633]
- State Key Laboratory of Freshwater Ecology and Biotechnology [2016FBZ11]
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In this work, periphyton photobioreactors were built and were used for the treatment of synthetic wastewater spiked with PPCPs under different operational conditions. The removal rates of total nitrogen were relatively stable and varied from 39% to 77% overtime in different treatments. However, the removal rates of soluble reactive phosphorus decreased overtime from 42% to 68% on day 2 to 15.8% to 44% on day 22. For the selected PPCPs, only bisphenol A was effectively removed (72%-86.4%), hydrochlorothiazide and ibuprofen were moderately removed (26.2%-48.7%), and carbamazepine and gemfibrozil were poorly removed (6.45%-20.6%). Longer hydraulic retention time enhanced the treatment efficiency but illumination period showed contrasting effects on the removal of the nutrients and the PPCPs. (C) 2017 Elsevier Ltd. All rights reserved.
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